Method for manufacturing fluorescent substrate and method for manufacturing image display device

Abstract

The method for manufacturing a fluorescent paste includes a process of applying a fluorescent paste including a sulfide fluorescent material and a binder resin onto a substrate, a first baking process of baking the substrate for a predetermined time at a first temperature that is equal to or lower than a temperature at which a generated amount of water has a maximum in a case where the fluorescent paste is measured by a TDP-MS method, and a second baking process of baking the substrate for a predetermined time at a second temperature that is equal to or higher than a temperature at which a generated amount of carbon dioxide has a minimum in a case where the fluorescent paste is measured by a TDP-MS method after the first baking process.

1 . A method for manufacturing a fluorescent substrate, comprising:
 a process of applying a fluorescent paste including a sulfide fluorescent material and a binder resin onto a substrate;   a first baking process of baking for a predetermined time the substrate having the fluorescent paste applied thereto at a first temperature that is equal to or lower than a temperature at which a generated amount of water has a maximum in a case where the fluorescent paste is measured by a TDP-MS method; and   a second baking process of baking for a predetermined time the substrate having the fluorescent paste applied thereto at a second temperature that is equal to or higher than a temperature at which a generated amount of carbon dioxide has a minimum in a case where the fluorescent paste is measured by a TDP-MS method after the first baking process.   
     
     
         2 . The method for manufacturing a fluorescent substrate according to  claim 1 , wherein the binder resin is an acrylic resin. 
     
     
         3 . The method for manufacturing a fluorescent substrate according to  claim 1 , wherein the binder resin is ethyl cellulose. 
     
     
         4 . The method for manufacturing a fluorescent substrate according to  claim 1 , wherein the second temperature is equal to or higher than a temperature on a high-temperature side from among the temperatures at which the generated amount of carbon dioxide has a maximum in a case where the fluorescent paste is measured by a TDP-MS method after the first baking process. 
     
     
         5 . A method for manufacturing an image display device having a fluorescent substrate, wherein
 the fluorescent substrate is manufactured by the method for manufacturing a fluorescent substrate according to  claim 1 .   
     
     
         6 . The method for manufacturing an image display device according to  claim 5 , wherein the image display device has an electron source substrate provided with electron-emitting devices.